D63711 NEC, D63711 Datasheet - Page 28

• Manufacturer Part Number: D63711
• Description: Search -----> UPD63711
• Manufacturer: NEC

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(8) 18H command (Defect comparator level setting)
[Functional description]
DF[7:0] : Set the defect signal comparator level.
28
MSB
MSB
DF7
The relationship between comparator level setting values and defect envelope signal voltages is shown below.
0
DF[7:0]
DF6
The range of 1 A.V
The setting value becomes the comparison threshold value.
The comparison result has the inverse polarity of the input (because the MSB after subtracting is used).
Output is inverted (because the signal after comparator output handled as a signal absence detection by
DEFECT = H).
0
DF5
0
Defect envelope
2
DF4
Command
Parameter
1
DD
DF3
1
1
4
A.V
Polarity inversion
DF2
Preliminary Product Information S14470EJ1V1PM00
DD
0
can be set in 256 8-bit levels.
Output with inverse polarity
Polarity inversion
DF1
0
DEFECTENV
3
4
1
4
LSB
LSB
DF0
0
A.V
A.V
DD
DD
7FH (2's)
80H (2's)
Comparator
DF[7:0]
DF[7:0]
MSB
Defect Comparator Level
DEFECT
PD63711